Azido-PEG3-CH2CO2-NHS

Azido-PEG3-CH2CO2-NHS consist of azide and NHS ester moieties The azide(N3) group is reactive with alkynes, BCN and DBCO via Click Chemistry to yield a stable triazole linkage. The NHS ester can label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.